Group 1 - The practice team from Hefei University of Technology engaged in social practice in Hangzhou and Yiwu, bridging the gap between academia and industry [1] - At Silan Microelectronics, students observed an automated production line that captures nanometer-level parameter fluctuations, highlighting the importance of "closed-loop control" and "signal processing" in ensuring product quality [1] - At Hikvision's exhibition hall, students experienced advanced applications such as millimeter-wave radar and infrared thermal imaging, emphasizing the integration of application and system architecture design as key problem-solving skills [1] - In Yiwu's international trade city, a virtual anchor in an "AI digital person live broadcast room" showcased products, supported by robust data processing and user behavior analysis technologies, demonstrating the relevance of signal processing and pattern recognition in cross-border e-commerce [1] Group 2 - The practice experience was described as a profound lesson, revealing the capabilities of frontline enterprises and the potential for personal development [1]

Core Viewpoint - The article highlights the journey and achievements of K. J. Ray Liu, emphasizing his contributions to the field of wireless sensing and AI, as well as his philosophy of pursuing dreams and maintaining one's original intentions in life and career [2][15][40]. Group 1: Personal Journey - K. J. Ray Liu was born in Taiwan and showed early interest in communication and signal processing, which became his lifelong profession [2][4]. - He faced challenges during his academic journey, including a difficult transition to studying in the U.S. and overcoming biases as a Chinese scholar [5][6]. - Liu became the first Asian president of IEEE in 2022, implementing significant reforms during his tenure [6][9]. Group 2: Contributions to Education - Liu has mentored over 70 doctoral and postdoctoral students, many of whom have achieved notable success in academia and industry [11][30]. - His teaching philosophy emphasizes the importance of independent thinking and problem discovery among students, rather than merely solving assigned problems [31][32]. Group 3: Transition to Industry - Liu retired from academia to pursue entrepreneurship in wireless AI, believing that practical applications require real-world data and environments [39][40]. - His company, Origin Wireless, focuses on utilizing wireless signals for environmental sensing, which has significant implications for health monitoring and safety [41][42]. Group 4: Vision for Wireless AI - Wireless AI aims to leverage ubiquitous wireless signals to perceive and understand human activities and health conditions without the need for wearable devices [41][42]. - The technology has already been deployed in various regions for remote monitoring, demonstrating its potential to save lives and improve health outcomes [42].